CB Where based on the ICD, the range had to include the code(s) for CB and could also include codes for acute or unspecified bronchitis. Acceptable outcomes could also be based on medical records, in-study diagnosis, self- report of physician diagnosis or of history of the disease, or ...
Tobacco Control studies show the presence of mycobacterial spores in the exhale of smokers. Once embedded in the lungs, these spores result in a COPD diagnosis.
In the death records, incidence cases were individuals identified with emphysema as an underlying cause of death (ICD-9 codes of 492, 496). Any individual with a date of diagnosis after the first initial interview and examination was included as an incidence case. 2.6. Analytical Methods Data ...